Combined electric lamp and alarm-clock



N. A. l. NIELSEN.

COMBINED ELECTRIC LAMP AND ALARM CLOCK.

APPLlCATlON FILED JUNE 21. 1919.

1,372,77 1 Patented Mar. 29, 1921.

4 am JMMW ATTORNEYS.

UNITED STATES PATENT orrice.

COMBINED ELECTRIC LAMP AND ALARM-CLOCK.

Application filed June T 0 all Q0 7mm 2'25 may 00 22 067% Be it known that I, Nrnils ARTHUR Irrevenn NIELsEN, subject of the King of Der.- mark, residing Copenhagen, Denmark, have invented new and useful Tmprovenients in Combined Electric Lamps and Alarm- (lloclrs, which the following is a specification.

The present invention is an electric lamp combined with an alarm clock in such a manner that the lamp not only may be lighted and extinguished independently of the alarm clock, but also will be lighted by the latter, as soon as the alarm-mechanism of the clock becomes operative, so that the alarm clock gives not only an acoustic but also an optical signal at a certain predetermined hour, which feature is both practical and convenient, especially when the hour concerned happens to occur during the darkness of the night.

The drawing shows one manner of constructing the invention,

Figure 1 showing the device in rear ele vation,

Fig. 2 the adjustable member of the alarm clock for the lamp-switch, in top-view, and

Fi 8 the same in end-view.

1 ?Fig. 1) is an alarm clock of known kind, 2 a case of wood or the like inclosing the same, 3 tumbler switch which is fa.- tened to the inside of the case 2, and 4 is a lamp-socket inserted in the top of the case and adapted to hold an incandescent lamp 5. which is inserted in a not shown electric circuit passing through the switch 3. To the winding shaft for the spring in the alarm mechanism of the clock, there is fastened. instead of the ordinarily used winding key a switch-reversing member consisting of a plate 6 (Figs. 1 to screwed, by means of a sleeve 7 (Figs. 1 to to the winding shaft and supportin at its edges parallel to the shaft, two plates 8 hinged to the plate. lV hen the reversing member does not-coop crate, in the manner further explained below, with the reversing lever 10 of the tumbler switch, the two plates 8 are forced. by two plate springs extending between their free edges and the plate 6, to occupy the positions relatively to the plate 6 as shown in Fig. 3.

The alarm clock and the tumbler switch are so located relatively to one another that Specification of Letters Patent.

Patented Mar. 29, 1921.

Serial No. 305,805.

the reversing lever of the latter projects in behind the rear face of the clock. lVhen the lever 10 occupies the lower position shown in Fig. 1, and the alarm mechanism in the clock becomes operative, whereby the shaft of the alarm spring and, thereby, the reversing members 6, 8 are rotated in the direction of the arrow in Fig. 1, then the one of plates 8, which first hits the tumbler lever 10 projecting within reach of these revolving plates 8, will first slide behind the tumbler lever, as shown in Fig. 1, the plate 8 swinging out from the plate 6, and will then take the tumbler lever 10 along, as soon as a suitable (not shown) stop on the plate 6 prevents the plate 8 from turning farther relatively to the same. This will be the case, when the plate 8 occupies approximately the position shown to the right in Fig. 1. The lever 10 is thereby raised into the position shown by dotted lines and snaps from there, in lrnown manner, into its upper (not shown) position, whereby the lamp 5 is lighted. The lever 10 is thereby swung out from the field covered by the plates 8 during their rotation about the shaft of the alarm spring, so that the rotation of the plates may then continue unimpeded.

The switch 3 is opened again, from the outside, by adjustment of a lever 12 connected, by means of a cord-transmission 11 or any other suitable device, to the lever 10 in such a manner that a reversal of one of these levers will always cause the other one to be reversed. It will be seen from this that except at the very moment when the alarm clock sounds, the lamp 5 may be extinguished and lighted independently of the alarm clock, simply by reversal of the lever 11, and the lever 10 will then be reversed simultaneously. Even if the lever 10 during its return motion to the current-ln'eaking position, might be moved against one of the plates 8, in case the latter happened to oc cupy a. position rendering this possible, the return motion of the lever will not be prevented, as the plate 8 will simply deflect. because, with the shown arrangement ot the springs 9 it will be able to deflect, resiliently, in both directions away from the normal position shown'in Fig.

The clock 1, the switch 3, the lever 12 and the connecting device between the latter and the lever 10 or its equivalent (in case of turning switches: the key) may be of any suitable kind and nature, and the shape and quality of the casing 2 is of no concern to the invention as such. The clock and the switch may also be arranged in any suitable manner relatively to one another.

f it be desired, the lever 12 may be omitted and replaced by another switch of any kind connected in parallel with the switch 8, for instance a switch built into the socket 4 in known manner, and adapted to extinguish and light the lamp from the outside. This arrangement sutiers from the drawback, however, that the lever 10 must always be reversed separately, after the alarm has sounded.

13 is a thinner plate attached to the plate 6, whereby the spring of the alarm mechanism may be wound by turning the said plate 13.. y

The reversing members 6, 8 may of course be given other forms than the one shown on V the drawing.

Having now particularly described and ascertalned my sald invention and the manner in which the same is to be performechl declare that what I claim is In the combination comprising within the same casing an electric lamp, an electric installation switch inserted in a circuit for said lamp, an alarm clock, the alarm winding key of which reverses automatically said switch when turning, and a manipulating lever pivoted in the said casing and adapted to reverse said switch by hand an alarm winding key comprising'a plate, Iastened to the alarm winding shaft and parallel thereto, and two plates hinged to the first plate along the edges of same and parallel to the winding shaft and resiliently connected to the first named plate and'causing said switch to be closed during the alarm, when turned toward the reversing arm of the switch.

In witness whereof, I have hereunto signed my name in the presence or" two subscribing witnesses.

NIELS ARTHUR EPJGVORD NIELSEN.

. Witnesses:

' CAPL MEMMINGSEN, UJBANG. 

